Microsoft Corp. has made a beta version of Windows XP available to the public that runs on desktops or workstations using Advanced Micro Devices Inc.’s Athlon 64 or Opteron processors, Microsoft said ...

Microsoft today officially launched the 64-bit version of its primary operating system, Windows XP Professional x64 Edition. The OS has been in the works for some time now, and even freely available ...

Microsoft Corp. confirmed that Windows XP 64-bit Edition will be generally available on Oct. 25, the same general availability date for its 32-bit versions -- Windows XP Home Edition and Windows XP ...